diff options
| -rw-r--r-- | Documentation/devicetree/bindings/input/cap11xx.txt | 4 | ||||
| -rw-r--r-- | drivers/input/keyboard/cap11xx.c | 8 |
2 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/cap11xx.txt b/Documentation/devicetree/bindings/input/cap11xx.txt index 61d20d8d97e2..7d0a3009771b 100644 --- a/Documentation/devicetree/bindings/input/cap11xx.txt +++ b/Documentation/devicetree/bindings/input/cap11xx.txt @@ -28,6 +28,10 @@ Optional properties: Valid values are 1, 2, 4, and 8. By default, a gain of 1 is set. + microchip,irq-active-high: By default the interrupt pin is active low + open drain. This property allows using the active + high push-pull output. + linux,keycodes: Specifies an array of numeric keycode values to be used for the channels. If this property is omitted, KEY_A, KEY_B, etc are used as diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c index eeda1f9359cd..4f59f0bab28f 100644 --- a/drivers/input/keyboard/cap11xx.c +++ b/drivers/input/keyboard/cap11xx.c @@ -45,6 +45,7 @@ #define CAP11XX_REG_STANDBY_SENSITIVITY 0x42 #define CAP11XX_REG_STANDBY_THRESH 0x43 #define CAP11XX_REG_CONFIG2 0x44 +#define CAP11XX_REG_CONFIG2_ALT_POL BIT(6) #define CAP11XX_REG_SENSOR_BASE_CNT(X) (0x50 + (X)) #define CAP11XX_REG_SENSOR_CALIB (0xb1 + (X)) #define CAP11XX_REG_SENSOR_CALIB_LSB1 0xb9 @@ -263,6 +264,13 @@ static int cap11xx_i2c_probe(struct i2c_client *i2c_client, dev_err(dev, "Invalid sensor-gain value %d\n", gain32); } + if (of_property_read_bool(node, "microchip,irq-active-high")) { + error = regmap_update_bits(priv->regmap, CAP11XX_REG_CONFIG2, + CAP11XX_REG_CONFIG2_ALT_POL, 0); + if (error) + return error; + } + /* Provide some useful defaults */ for (i = 0; i < cap->num_channels; i++) priv->keycodes[i] = KEY_A + i; |